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    Gas laser oscillating unit
    5.
    发明公开
    Gas laser oscillating unit 有权
    Gaslaseroszillatoreinheit

    公开(公告)号：EP1879268A1

    公开(公告)日：2008-01-16

    申请号：EP07012819.4

    申请日：2007-06-29

    申请人： Fanuc Ltd

    发明人： Egawa, Akira ,  Murakami, Takafumi ,  Nishio, Akihiro

    IPC分类号： H01S3/036 ,  H01S3/07 ,  H01S3/223

    CPC分类号： H01S3/036 ,  H01S3/073 ,  H01S3/2232 ,  H01S3/2237

    摘要： A gas laser oscillating unit having a gas junction part (23) where gas flow may be stable, whereby a stable laser beam output and/or a laser beam that does not fluctuate very much may be achieved. The laser gas, flowing through first and second excitation parts (3a,3b), is introduced into the first and second tapered gas flow passages (61a,61b). After that, the two gas flows (80a,80b) are mixed at or near the center point (51) of a gas junction part (23) and the mixed gas flows in a next flow passage (62). Then, one of the gas flows from the first excitation part is biased toward the -X direction by a first biasing member (70a) arranged in the first gas flow passage, and the other gas flow from the second excitation part is biased toward the +X direction by a second biasing member (70b) arranged in the second gas flow passage. The first gas flow passage (60a,61a) from the first excitation part (3a) to the gas junction part (23) and the second gas flow passage (60b,61b) from the second excitation part (3b) to the gas junction part (23) may be 180-degree rotationally-symmetric about a center axis (52) extending through the center point (51) of the gas junction part (23) and perpendicular to the laser axis (4).

    摘要翻译： 一种具有气体接合部分（23）的气体激光振荡单元，其中气体流动可以是稳定的，由此可以实现不太大波动的稳定的激光束输出和/或激光束。 流经第一和第二激励部分（3a，3b）的激光气体被引入到第一和第二锥形气体流动通道（61a，61b）中。 之后，两个气体流（80a，80b）在气体接合部（23）的中心点（51）处或附近混合，混合气体在下一个流路（62）中流动。 然后，通过设置在第一气体流路中的第一施力部件（70a）将来自第一激励部的气体中的一个流向-X方向偏置，另一方面，来自第二激发部的气体向+ X方向通过布置在第二气体流动通道中的第二偏压构件（70b）。 从第一激励部分（3a）到气体接合部分（23）和第二气体流动通道（60b，61b）的第一气体流动通道（60a，61a）从第二激发部分（3b）到气体连接部分 （23）可以围绕延伸穿过气体接合部分（23）的中心点（51）并垂直于激光轴线（4）的中心轴线（52）旋转对称180度。